Change Contents (Action)

Usually this means either one of the 2 things:- You change an item outside the current AU, which is not allowed because the AU can only be launched seperately.OR:- You have copy-pasted this action but the destination didn't make it into the new copy. Usually this is left blank when copied, and you need to redirect it. The action itself is usually copied along (such as GOTO or HIDE) but the actual object that needs to be manipulated was not.I can not think of other causes.